Apparatus for developing roller-films in daylight.



No. 761,076. PATENTED MAY 31, 1904. S.JAFFE APPARATUS FOR DEVELOPING ROLLER FILMS IN DAYLIGHT.

APPLICATION FILED 0G'1.24,1903.

N0 MODEL.

W/T'NEGSES h- 2% z a 41%A6 umo A WASHINGTON n c UNITED STATES Patented May 31, 1904.

, PATENT OFFICE.

, SALLY JAEFE, E iPOSEN, GERMANY.

APPARATUS FOR DEVELOPING ROLLER-FILMS "a IDAYLIGHT'.

SPECIFICATION forming part of Letters PatentNo, 761,076, dated May 31, 1904.

I Q U i i A ppli cation filed October 24,1903. Serial N0. 1 78,409. tNo model.)

. 1P6 .a ZZ rvhom it may concern:

. Be it known that I, SALLY J AFEE, a resident of the city of Posen, Province ofPosen, Kingdom of Prussia, in the Empire of Germany, have invented new and useful Improvements in Apparatus for Developing Roller-Films'in Daylight, of which the following is 'a specification. I p p The flexible celluloid sheets at present much used in place of glass plates, which constitute the so-called roller-films, cannot be properly developed in the ordinary baths, as they are mostly manufactured in strips long enoughfor six or twelve. exposures, whichstrips must be either cut up beforebeing developed in the ordinary dishes or must be drawn to and fro through the bath by hand. Elongated developing-dishes have therefore been proposed in which the entire length of film is stretched on film and to allow of the changing of the film rolls by daylight. These roller-films maybe developed without a dark chamheifi alrocking dish if an arrangement be iii frod'uced therein which allows of the film being unrolled and stretched under a closed cover; By the present invention the roll is held in a frame or support arranged on the bottom of the dish. The covering paper strip is fixed on a spindle prolonged to the outside and provided with a crank-handle on the outside of the dish. After the'light-excluding cover has been put on the handle is revolved, and thereby the paper strip, and simultaneously with it the film-strip is unwound. .After theunwinding by rocking the dish the developing fluid can be caused to act on the whole extended length of film, and

j which are not shown in the drawings.

this is continued until the developing is completed.

A form of construction of the arrangement is shown 'in' the'accompanying drawings, in which Figure 1 is a'vertical longitudinal section; Fig. 2, a plan view of Fig. 'l'after the cover has been removed from thedish; Fig. 3, a horizontal' section of the device for holding the film. Fig. 3 is a detail view, and Fig. 4 a separate view, of the crank device for unwindingthe film.

v The apparatus consists of along dish a, with'a curved bottom, preferably made of sheet-zinc, (although other suitable material may be used.) The most suitable length of the dish is about L20 to 1.60 meters and the width .20 meters in order to suffice for all the ordinary sizes of films. Its depth may be about .08 of a meter. The dish is provided above with-an aperture, over which a lid or cover 6, which excludes the light, may be placed. The lid or cover may, as in the form of construction shown, he composed of several parts connected by hinges and be pro- I vided with a double-flanged edge in order to obtain a joint thoroughly impervious to light.

The dish a is carried by two pins 0, which rest in the bearings of a support-stand d, but may also be suspended to cords by hooks, It is, however, essential that it should be able to be caused to describe a rocking movement in order that only a very moderate quantity of the developing liquid need be poured into the dish, which by being rocked moistens the entire length of the strip of film stre the bottorn'of the dish and acts all parts te'hed along of the same uniformly. A fram for support 6 may be fixed in thisdish, inwhijc'h frame a roller-filmy is held. The support consists of a metal frame (see'Fig. 3) provided at one end with a point 9 and at the other with an elongated projection or spring 71. The point 9 and the spring ll are mounted. on pins arranged in annular bearings 27 and pass through the ends of the frame and are movable longitudinally. Spiral springs labearing with one end against a collar mounted on the pins and with the other end against the bottom of the annular bearing i, hold the pins in a normal position, (shown in Fig. 3,) in which both the point and the spring can engage in suitablyshaped recesses of the ordinary roller-films and form the axes of rotation. This position is determined by rings Z, which are passed through the pins and also form handles by means of which the pins may be drawn back against the action of the springs ](I when the roll is to be placed in the support. The support is held bya pair of angular feet m, which may be inserted in lugs 12, fixed on the bottom of the dish. Two or more pairs of such lugs are provided. Two pairs are shown in the drawings. This is done with the object of enabling the position of the roll-holder to be altered, according to the length of the rollerfilm. A guide-plate 0 is provided on the front side of the support, which is fixed by means of an easily-releasable pin 1', passed through lugs 12 of the plate and lugs q of the supportframe. On the under side the guide-plate is provided with an easily-revoluble roller 8 for retaining and supporting the film-band. A second support-frame t is fixed in a similar manner at one end, in which a winding-roller u is mounted. The-spindle o of the roller, which is connected with the roller 14 by means of small projections 10 in such a way that the roller revolves'with the spindle, is of such a length that it projects to the outside of the bath a through a lateral aperture, Fig. 2. The projecting end is bent in the form of a crank or provided with a separate crank by means of which the spindle o, and thereby the roll a, may be rotated. The'core of the roller a has a slot in which the end of the paper strip 00, covering the film, (which paper strip is made of sufficient length,) may be inserted, or a clamp device, by means of which the paper strip may be fixed.

The apparatus is used in the manner hereinafter described. The roller-filmis removed from, the photographic apparatus and is inserted in the support a, which 'may be easily done after the point g and the spring it have been drawn back, and the film is gripped in this support-frame, after which the latter is inserted in a suitable pair of the lugs a. The end of the covering-strip is' inserted between the rollers .5- and the guide-plate 0 and wound off so far until it can be 'fixed to the reel it. Should the length of the paper in the rollfilms used not be sufiiciently great to allow of this being done without the film itself being exposed, a strip of paper may be firmly attached to the end of the cover-strip in any suitable manner. After the end as of the paperstrip has been fastened in the reel u a sufficient quantity of the developing fluid is poured into the dish, and the latter is closed by the lid. which is impervious to light. The crank Q) is then rotated. and thereby the paperstrip 0 is wound off the roll f and onto the roll 24, whereby soon the film yitself is drawn out. The guide-plate 0 presses the film with the sensitive side uppermost on the paper band m, so that it fits closely thereto, and in consequence of the adhesion produced by the developing fluid is moved forward with the paper band. The paper band itself rests on the bottom of the dish. I/Vhen the handle 1) has been rotated sufficiently so that the entire strip of film or the exposed part of the same is wound off, which after some little practice can be ascertained by the number of the crank revolutions, the actual developing is commenced by the rocking of the dish on the pins 0. After the development is completed the developer may be removed through a discharge-pipe arranged at a suitable point, and then the washing and fixing of the film may be done in the ordinary manner. It is also to be pointed out that for any desired width of film a separate fixing-frame is necessary, while the roller a is broad enough to take both the broadest as well as the narrowest film-bands.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In apparatus for developing roller-films in daylight a curved box adapted to receive a rocking motion, a closely-fitting lid on said 9 box; means for holding a film-roller at one end of said box; and means for rolling off and retaining a portion of the paper cover at the other end of the box.

2. In apparatus for developing roller-films in daylight a curved box adapted to receive a rocking motion and hold the developing solution; a light-tight lid on said box; hinges in said lid; and roller means at both ends of said box adapted to hold the film along the bottom of said box.

8. In apparatus for developing roller-films in daylight a curved box, adapted to be closed by a light-tight lid; a frame at one end of said box adapted to hold the film; spring means for holding said film, said means being adapted to allow of the rotation of the film; a second frame at the other end of the box; a roller in said frame adapted to receive the paper cover of the film; and means for rotating said roller. v I

4, In apparatus for developing roller-films in daylight a curved box' adapted to receive a rocking motion and closed by a light-tight lid; a frame at one end of said box; means for receiving the roller-film in said frame, said means being adapted to allow of the rotation of said roller-film; a guide-plate in proximity to said frame adapted to guide the film onto the bottom of the box substantially as described. I

5. In apparatus for developing roller-films in daylight a curved box adapted to receive a rocking motion, means for holding the film at one end of said box and means for receiving the paper cover of said film at the other end of the box said two means being adjustable relative the one to the other along the bottom of the box, substantially as described.

6. In apparatus for developing roller-films in daylight the combination of a curved box adapted to receive a rocking motion with a frame at one end thereof spring means for holding the roller-film in said frame said means being adapted to allow of the rotation of the same and paying out of the film and its cover; a guide-plate and roller adapted to guide the film onto the bottom of the box and above the paper cover and with a frame at the other end, a roller revolubly mounted in 5 In witness whereof I have hereunto set my 20 hand in presence of two witnesses.

SALLY JAFFE.

Witnesses:

CURT MATERNE, IGNATZ OHAYER. 

